Cisco IOS XR Software BVI Routed Packet Denial of Service Vulnerability

A vulnerability in the packet-processing code of Cisco IOS XR Software for Cisco ASR 9000 Series Aggregation Services Routers ASR could allow an unauthenticated, remote attacker to cause a lockup and eventual reload of a network processor chip and the line card that is processing traffic. Only...

Cisco IOS Software Virtual Routing and Forwarding ICMP Queue Wedge Vulnerability

A vulnerability within the virtual routing and forwarding VRF subsystem of Cisco IOS software could allow an unauthenticated, remote attacker to cause a denial of service DoS condition. The vulnerability is due to a failure to properly process malicious ICMP version 4 ICMPv4 messages received on ...

Multiple Vulnerabilities in Cisco ASA Software

2015-July-08 UPDATE: Cisco PSIRT is aware of disruption to some Cisco customers with Cisco ASA devices affected by CVE-2014-3383, the Cisco ASA VPN Denial of Service Vulnerability that was disclosed in this Security Advisory. Traffic causing the disruption was isolated to a specific source IPv4...

Cisco Unified Web and E-Mail Interaction Manager Broken Authentication Vulnerability

A vulnerability in Cisco Unified Web and E-Mail Interaction Manager could allow an unauthenticated, remote attacker to capture, forge, or brute force a session identifier transmitted as a parameter in GET requests. The vulnerability is due to improper use of session identifiers in GET requests. A...

Cisco Unified Computing System Software KVM Encryption Vulnerability

A vulnerability in Cisco Unified Computing System software KVM could allow an unauthenticated, remote attacker to intercept a KVM connection to spoof a host or decrypt keyboard and mouse events on an encrypted channel. The vulnerability is due to a hard coded SSL certificate. An attacker could...

Management Center for Cisco Security Agent Remote Code Execution Vulnerability

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Cisco Content Services Gateway Vulnerabilities

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Cisco IOS SSL VPN Vulnerability

Cisco IOS® Software contains a vulnerability when the Cisco IOS SSL VPN feature is configured with an HTTP redirect. Exploitation could allow a remote, unauthenticated user to cause a memory leak on the affected devices, that could result in a memory exhaustion condition that may cause device...

Cisco Security Monitoring, Analysis and Response System and Adaptive Security Device Manager Secure Communication Vulnerability

Cisco Security Monitoring, Analysis and Response System versions prior to 4.2.3 and Cisco Adaptive Security Device Manager versions prior to 5.22.1 contain a vulnerability that could allow an unauthenticated, remote attacker to impersonate a device managed by the system. The vulnerability exists...

Cisco Secure Firewall Adaptive Security Appliance Software and Secure Firewall Threat Defense Software VPN Web Server Remote Code Execution Vulnerability

Update: On November 5, 2025, Cisco became aware of a new attack variant against devices running Cisco Secure ASA Software or Cisco Secure FTD Software releases that are affected by CVE-2025-20333 and CVE-2025-20362. This attack can cause unpatched devices to unexpectedly reload, leading to denial...

Cisco Secure Client Software Denial of Service Vulnerability

A vulnerability in Internet Key Exchange version 2 IKEv2 processing of Cisco Secure Client Software could allow an unauthenticated, remote attacker to cause a denial of service DoS of Cisco Secure Client. This vulnerability is due to an integer underflow condition. An attacker could exploit this...

Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software AnyConnect Access Control List Bypass Vulnerabilities

Multiple vulnerabilities in the per-user-override feature of Cisco Adaptive Security Appliance ASA Software and Cisco Firepower Threat Defense FTD Software could allow an unauthenticated, remote attacker to bypass a configured access control list ACL and allow traffic that should be denied to flo...

Cisco Firepower Threat Defense Software Snort 3 Geolocation IP Filter Bypass Vulnerability

A vulnerability in the IP geolocation rules of Snort 3 could allow an unauthenticated, remote attacker to potentially bypass IP address restrictions. This vulnerability exists because the configuration for IP geolocation rules is not parsed properly. An attacker could exploit this vulnerability b...

Cisco Unified Communications Products Access Control Vulnerability

A vulnerability in the Disaster Recovery framework of Cisco Unified Communications Manager Unified CM, Cisco Unified Communications Manager IM & Presence Service Unified CM IM&P, and Cisco Unity Connection could allow an authenticated, remote attacker to perform certain administrative actions the...

Cisco Firepower Threat Defense Software SSH Connections Denial of Service Vulnerability

A vulnerability in the processing of SSH connections for multi-instance deployments of Cisco Firepower Threat Defense FTD Software could allow an unauthenticated, remote attacker to cause a denial of service DoS condition on the affected device. This vulnerability is due to a lack of proper error...

Cisco Email Security Appliance URL Filtering Bypass Vulnerability

A vulnerability in the antispam protection mechanisms of Cisco AsyncOS Software for Cisco Email Security Appliance ESA could allow an unauthenticated, remote attacker to bypass the URL reputation filters on an affected device. This vulnerability is due to improper processing of URLs. An attacker...

Cisco Vision Dynamic Signage Director Reflected Cross-Site Scripting Vulnerability

A vulnerability in the web-based management interface of Cisco Vision Dynamic Signage Director could allow an unauthenticated, remote attacker to conduct a cross-site scripting XSS attack against a user of the interface on an affected device. This vulnerability is due to insufficient validation o...

Cisco Webex Meetings Unauthorized Distribution List Update Vulnerability

A vulnerability in the distribution list feature of Cisco Webex Meetings could allow an authenticated, remote attacker to modify a distribution list that belongs to another user of their organization. The vulnerability is due to insufficient authorization enforcement for requests to update...

Cisco SD-WAN vManage Cypher Query Language Injection Vulnerability

A vulnerability in the web-based management interface of Cisco SD-WAN vManage Software could allow an authenticated, remote attacker to conduct Cypher query language injection attacks on an affected system. The vulnerability is due to insufficient input validation by the web-based management...

Cisco Firepower Management Center Information Disclosure Vulnerability

A vulnerability in the storage of proxy server credentials of Cisco Firepower Management Center FMC could allow an authenticated, local attacker to view credentials for a configured proxy server. The vulnerability is due to clear-text storage and weak permissions of related configuration files. A...

Cisco IoT Field Network REST API Insufficient Input Validation Vulnerability

A vulnerability in the REST API of Cisco IoT Field Network Director FND could allow an authenticated, remote attacker to gain access to the back-end database of an affected device. The vulnerability is due to insufficient input validation of REST API requests that are made to an affected device. ...

Cisco IoT Field Network Director Unprotected Storage of Credentials Vulnerability

A vulnerability in the web UI of Cisco IoT Field Network Director FND could allow an authenticated, remote attacker to obtain hashes of user passwords on an affected device. The vulnerability is due to insufficient protection of user credentials. An attacker could exploit this vulnerability by...

Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software WebVPN Portal Access Rule Bypass Vulnerability

Update from October 22nd, 2020: Cisco has become aware of a new Cisco Adaptive Security Appliance vulnerability that could affect the fixed releases recommended for code trains 9.13 and 9.14 in the Fixed Software "fs" section of this advisory. See the Cisco Adaptive Security Appliance Software...

Cisco Firepower Management Center Software Denial of Service Vulnerability

A vulnerability in the licensing service of Cisco Firepower Management Center FMC Software could allow an unauthenticated, remote attacker to cause a denial of service DoS condition. The vulnerability is due to improper handling of system resource values by the affected system. An attacker could...

Cisco SD-WAN Solution Software Denial of Service Vulnerability

A vulnerability in Cisco SD-WAN Solution Software could allow an unauthenticated, remote attacker to cause a denial of service DoS condition. The vulnerability is due to improper validation of fields in Cisco SD-WAN peering messages that are encapsulated in UDP packets. An attacker could exploit...

Cisco Webex Meetings Desktop App and Webex Meetings Client URL Filtering Arbitrary Program Execution Vulnerability

A vulnerability in Cisco Webex Meetings Desktop App and Cisco Webex Meetings Client could allow an unauthenticated, remote attacker to execute programs on an affected end-user system. The vulnerability is due to improper validation of input that is supplied to application URLs. The attacker could...

Cisco TelePresence Collaboration Endpoint and RoomOS Software Command Injection Vulnerability

A vulnerability in the software upgrade process of Cisco TelePresence Collaboration Endpoint Software and Cisco RoomOS Software could allow an authenticated, remote attacker to modify the filesystem to cause a denial of service DoS or gain privileged access to the root filesystem. The vulnerabili...

Cisco Email Security Appliance URL Filtering Bypass Vulnerability

A vulnerability in the antispam protection mechanisms of Cisco AsyncOS Software for Cisco Email Security Appliance ESA could allow an unauthenticated, remote attacker to bypass the URL reputation filters on an affected device. The vulnerability is due to insufficient input validation of URLs. An...

Cisco Prime Collaboration Provisioning Software SQL Injection Vulnerability

A vulnerability in the web-based management interface of Cisco Prime Collaboration Provisioning Software could allow an authenticated, remote attacker to conduct SQL injection attacks on an affected system. The vulnerability exists because the web-based management interface improperly validates...

Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software BGP Denial of Service Vulnerability

A vulnerability in the implementation of the Border Gateway Protocol BGP module in Cisco Adaptive Security Appliance ASA Software and Cisco Firepower Threat Defense FTD Software could allow an unauthenticated, remote attacker to cause a denial of service DoS condition. The vulnerability is due to...

Cisco NX-OS CLI Command Software Image Signature Verification Vulnerabilities

Multiple vulnerabilities in the Image Signature Verification feature of Cisco NX-OS Software could allow an authenticated, local attacker with administrator-level credentials to install a malicious software image on an affected device. The vulnerabilities exist because software digital signatures...

Cisco NX-OS Software Command Injection Vulnerability (CVE-2019-1784)

A vulnerability in the CLI of Cisco NX-OS Software could allow an authenticated, local attacker to execute arbitrary commands on the underlying Linux operating system with the privilege level of root. The vulnerability is due to insufficient validation of arguments passed to a specific CLI comman...

Cisco Video Surveillance Manager Web-Based Management Interface Information Disclosure Vulnerability

A vulnerability in the web-based management interface of Cisco Video Surveillance Manager could allow an unauthenticated, remote attacker to access sensitive information. The vulnerability is due to improper validation of parameters handled by the web-based management interface. An attacker could...

Cisco Prime Network Registrar Denial of Service Vulnerability

A vulnerability in the DHCPv6 input packet processor of Cisco Prime Network Registrar could allow an unauthenticated, remote attacker to restart the server and cause a denial of service DoS condition on the affected system. The vulnerability is due to incomplete user-supplied input validation whe...

Cisco IOS and IOS XE Software Smart Call Home Certificate Validation Vulnerability

A vulnerability in the Cisco Smart Call Home feature of Cisco IOS and IOS XE Software could allow an unauthenticated, remote attacker to gain unauthorized read access to sensitive data using an invalid certificate. The vulnerability is due to insufficient certificate validation by the affected...

Cisco Unity Connection File Upload Denial of Service Vulnerability

A vulnerability in the Bulk Administration Tool BAT for Cisco Unity Connection could allow an authenticated, remote attacker to cause high disk utilization, resulting in a denial of service DoS condition. The vulnerability exists because the affected software does not restrict the maximum size of...

Cisco Data Center Network Manager Privilege Escalation to Underlying Operating System Vulnerability

A vulnerability in the web interface of Cisco Data Center Network Manager could allow an authenticated application administrator to execute commands on the underlying operating system with root-level privileges. The vulnerability is due to incomplete input validation of user input within an HTTP...

Cisco SD-WAN Solution Zero Touch Provisioning Denial of Service Vulnerability

A vulnerability in the Zero Touch Provisioning service of the Cisco SD-WAN Solution could allow an unauthenticated, remote attacker to cause a denial of service DoS condition on an affected device. The vulnerability is due to incorrect bounds checks for certain values in packets that are sent to...

Cisco IP Phone 6800, 7800, and 8800 Series with Multiplatform Firmware Web UI Command Injection Vulnerability

A vulnerability in the web-based UI of Cisco IP Phone 6800, 7800, and 8800 Series with Multiplatform Firmware could allow an authenticated, remote attacker to perform a command injection and execute commands with the privileges of the web server. The vulnerability is due to insufficient input...

Cisco Enterprise NFV Infrastructure Software Web Management Interface Path Traversal Vulnerability

A vulnerability in the web management interface of Cisco Enterprise NFV Infrastructure Software NFVIS could allow an authenticated, remote attacker to conduct a path traversal attack on a targeted system. The vulnerability is due to insufficient validation of web request parameters. An attacker w...

Cisco Firepower Threat Defense Software Policy Bypass Vulnerability

A vulnerability in the detection engine of Cisco Firepower Threat Defense software could allow an unauthenticated, remote attacker to bypass a configured Secure Sockets Layer SSL Access Control AC policy to block SSL traffic. The vulnerability is due to the incorrect handling of TCP SSL packets...

Cisco 5500 and 8500 Series Wireless LAN Controller Information Disclosure Vulnerability

A vulnerability in the REST API of Cisco 5500 and 8500 Series Wireless LAN Controller WLC Software could allow an unauthenticated, remote attacker to view system information that under normal circumstances should be prohibited. The vulnerability is due to incomplete input and validation checking...

Cisco Wireless LAN Controller 802.11 Management Frame Denial of Service Vulnerability

A vulnerability in the 802.11 frame validation functionality of the Cisco Wireless LAN Controller WLC could allow an unauthenticated, adjacent attacker to cause an affected device to reload unexpectedly, resulting in a denial of service DoS condition. The vulnerability is due to incomplete input...

Cisco Wireless LAN Controller and Aironet Access Points IOS WebAuth Client Authentication Bypass Vulnerability

A vulnerability in Web Authentication WebAuth clients for the Cisco Wireless LAN Controller WLC and Aironet Access Points running Cisco IOS Software could allow an unauthenticated, adjacent attacker to bypass authentication and pass traffic. The vulnerability is due to incorrect implementation of...

Cisco UCS Central Arbitrary Command Execution Vulnerability

A vulnerability in an operations script of Cisco UCS Central could allow an authenticated, remote attacker to execute arbitrary shell commands with the privileges of the daemon user. The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by posting...

Cisco NX-OS System Software CLI Arbitrary File Read Vulnerability

A vulnerability in the CLI of Cisco NX-OS System Software could allow an authenticated, local attacker to read the contents of arbitrary files. The vulnerability is due to insufficient input validation for a specific CLI command. An attacker could exploit this vulnerability by issuing a crafted...

Cisco Unified Contact Center Express Cross-Site Scripting Vulnerability

A vulnerability in the web-based management interface of Cisco Unified Contact Center Express could allow an unauthenticated, remote attacker to conduct a cross-site scripting XSS attack against a user of an affected device. The vulnerability is due to insufficient validation of user-supplied inp...

Cisco IOS XE Wireless Controller Manager Denial of Service Vulnerability

A vulnerability in the wireless controller manager of Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to cause a restart of the switch and result in a denial of service DoS condition. The vulnerability is due to insufficient input validation. An attacker could exploit this...

Cisco Prime Collaboration Provisioning Tool Pervasive Cross-Site Request Forgery Vulnerability

A vulnerability in the Web UI Application of the Cisco Prime Collaboration Provisioning Tool could allow an unauthenticated, remote attacker to execute unwanted actions. The vulnerability is due to a lack of defense against cross-site request forgery CSRF attacks. An attacker could exploit this...

Cisco Adaptive Security Appliance Username Enumeration Information Disclosure Vulnerability

A vulnerability in the web interface of the Cisco Adaptive Security Appliance ASA could allow an unauthenticated, remote attacker to determine valid usernames. The attacker could use this information to conduct additional reconnaissance attacks. The vulnerability is due to the interaction between...